#1
I have a 120 watt amp w/ 2 10" speakers. Can I gig with that or do I need a half stack? My band plays metal (not hair metal, we soundl ike waking the cadaver/bring me the horizon stuff).
#5
5 bucks says it's a spider.

Even if it is a spider, you should be able to. 120 SS watts should get pretty loud for gigs. But, it'll sound like crap, but that's a different issue.
Call me Wes.
Gear:
Fender American Deluxe HSS Strat
Chicago Blues Box Roadhouse
Bad Cat Cougar 5
1957 Gibson GA-5
Ceriatone 18w TMB Combo
Hughes & Kettner Tube Factor
Various Ibanez TS9s
Weber MASS Attenuator